WO1999005896A1 - Joint hermetique pour source de courant situee dans un boitier - Google Patents

Joint hermetique pour source de courant situee dans un boitier Download PDF

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Publication number
WO1999005896A1
WO1999005896A1 PCT/US1998/015277 US9815277W WO9905896A1 WO 1999005896 A1 WO1999005896 A1 WO 1999005896A1 US 9815277 W US9815277 W US 9815277W WO 9905896 A1 WO9905896 A1 WO 9905896A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
collar
hole
groove
force
Prior art date
Application number
PCT/US1998/015277
Other languages
English (en)
Other versions
WO1999005896A9 (fr
Inventor
Thomas A. Turgeon
Original Assignee
Minnesota Mining And Manufacturing Company
Hydro-Quebec Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minnesota Mining And Manufacturing Company, Hydro-Quebec Corporation filed Critical Minnesota Mining And Manufacturing Company
Priority to AU85098/98A priority Critical patent/AU8509898A/en
Publication of WO1999005896A1 publication Critical patent/WO1999005896A1/fr
Publication of WO1999005896A9 publication Critical patent/WO1999005896A9/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
    • H01M50/103—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0468—Compression means for stacks of electrodes and separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6553—Terminals or leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
    • H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/14—Cells with non-aqueous electrolyte
    • H01M6/18—Cells with non-aqueous electrolyte with solid electrolyte
    • H01M6/181—Cells with non-aqueous electrolyte with solid electrolyte with polymeric electrolytes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • This invention relates generally to hermetic seals, and more particularly, to a hermetic seal for use with an encased power source .
  • a hermetic seal for sealing a hole provided in the cover of a housing includes a first seal body contacting a first surface of the cover and has a central passage.
  • the first seal body includes a collar that extends through the hole in the cover and has an outer surface which bears against an inner surface of the hole.
  • the collar has an inner surface that tapers away from the central passage.
  • a second seal body of the hermetic seal contacts the second surface of the cover and has a central passage.
  • the second seal body includes a groove having an inner surface tapering toward the central passage.
  • a conduit passes through the respective central passages of the first and second seal bodies and includes a first end, a second end opposing the first end, and a flange extending outwardly from the first end which contacts the first seal body.
  • a fastener is coupled to the second end of the conduit and produces a compressive force on the first and second seal bodies sufficient to cause a portion of the outer surface of the collar to cold flow against the inner surface of the hole thereby sealing the perimeter of the hole in the cover.
  • Fig. 1 is a depiction of an embodiment of a hermetic sealing apparatus for sealing a passage provided in a cover of a housing;
  • Figs. 2-3 illustrate a pre-sealed configuration and a post-sealed configuration of the hermetic sealing apparatus shown in Fig. 1
  • Fig. 4 is an exploded view of a power generating module disposed in a housing that incorporates a hermetic seal in accordance with an embodiment of the present invention
  • Fig. 5 is an illustration of a prismatic electrochemical cell which represents one embodiment of a power source which may be encased in a housing incorporating a hermetic seal in accordance with an embodiment of the present invention
  • Fig. 6 is a depiction of various film layers constituting an electrochemical cell in accordance with the embodiment shown in Fig. 5.
  • a seal constructed in accordance with the principles of the present invention may be employed to provide hermetic sealing between a conduit, such as an electrical feed-through provided in a housing cover of a power generating system, and a passage in the housing.
  • Power and communication lines may be passed through the conduit to provide external conductivity with power and electronic components contained within the hermetic environment of an encased power generating system.
  • a hermetic seal constructed in accordance with the principles of the present invention may be employed in applications other than those described herein.
  • first seal body 22 having a central passage which is in general alignment with a hole provided through a substantially planar plate 21, such as a cover of a power generating system housing.
  • a second seal body 24 of the seal 20 also includes a central passage which is in general alignment with the hole of the cover 21 and the central passage of the first seal body 22.
  • the first seal body 22 is disposed on an upper surface of the cover 21, and the second seal body 24 is disposed on a lower surface of the cover 21.
  • the first seal body 21 includes a collar 33 which extends through the hole of the cover 21 and bears against an inner surface 39 of the hole.
  • the collar 33 includes a tapered inner surface 38 which tapers away from the central passage of the first seal body 22.
  • the second seal body 24 includes a groove 35 having an inner tapered surface 40 which tapers toward the central passage of the second seal body 24.
  • the collar 33 of the first seal body 22 is received by the groove 35 provided in the second seal body 24 such that the tapered surfaces 38, 40 of the first and second seal bodies 22, 24 slidably engage one another as the collar 33 is forced into the groove 35.
  • Engagement of the opposing tapered surfaces 38, 40 of the first and second seal bodies 22, 24 in a fully installed configuration forces a portion 37 of the outer surface of the collar 33 to cold flow against the inner surface 39 of the hole provided in the cover 21.
  • cold flowing one material against another material forms an extremely tight seal between the two materials.
  • a hermetic seal is provided between the inner surface 39 of the hole and the collar 33 through slidable engagement between the collar 33 of the first seal body and the groove 35 provided in the second seal body 24.
  • a conduit is further shown in Figs. 1-3.
  • the conduit 26 having a first end 23 and an opposing second end 27, passes through the hole in the cover 21 and the central passages of the first and second seal bodies 22, 24.
  • the conduit 26 includes a central passage through which electrical and communication lines may pass into the internal hermetic environment of a housing to which the cover 21 is mounted.
  • the conduit 26 includes a flange 25 which extends outwardly from the first end 23 of the conduit 26 and contacts a surface of the first seal body 22.
  • the conduit 26 has a diameter which is substantially equivalent to the diameter of the central passages of the first and second seal bodies 22, 24 such that an outer surface 42 of the conduit 26 forms a tight, smooth fit with the inner diameter surfaces of the first and second seal body central passages.
  • the seal 20 also includes a thrust washer 28 that abuts a lower surface of the second seal body 24.
  • a wave washer 30 is disposed between the thrust washer 28 and a second thrust washer 32.
  • a nut 34 in abutment with the second thrust washer 32, exerts an axially directed compressive force on the elements of the hermetic seal 20 as the nut 34 is tightened on the threaded second end
  • a compressive force, F c produced by the tightened nut 34 causes the wave washer 30 to compress which, in turn, forces the inwardly tapered inner surface 40 of the second seal body 24 into slidable engagement with the outwardly tapered inner surface 38 of the first seal body 22.
  • Application of the compressive force, F c drives the inner diameter surface 41 of the second seal body 24 inwardly against the outer surface 42 of the conduit 26. Slidable engagement between the two tapered surfaces 38, 40 also drives a portion 37 of the collar 33 into tight engagement with the inner surface 39 of the hole provided in the cover 21.
  • the wave washer 30 continues to apply the compressive force, F c , so as to maintain the integrity of the hermetic seal 20 over the service life of the seal.
  • the compressive force, F c may be produced by a fastener apparatus other than that shown in Fig. 1.
  • a spring- loaded metal keeper may be used as an alternative to the threaded nut 34.
  • Other retention devices which are capable of maintaining a continuous compressive force, Fc, may also be employed.
  • the hole provided in the cover 21 is circular and the first and second seal bodies 22, 24, as well as the conduit 26, each have a geometry that complements the geometry of the hole provided through the cover 21. It is understood that a hermetic seal constructed in accordance with the principles of the present invention may have a configuration other than that illustrated in the
  • the cover 21 is constructed from a metallic material, such as aluminum, and the first and second seal bodies 22, 24 are fabricated from a plastic material, such as polypropylene plastic.
  • the cover 21 may be fabricated from any suitable material that facilitates air-tight sealing between the cover 21 and the first and second seal bodies 22, 24.
  • the conduit 26 may be fabricated from a metallic or a plastic material. It is noted that gaps 46,47 may be provided in the first and second seal bodies 22, 24, respectively, to accommodate positional shifting between the first and second seal bodies 22, 24 occurring from forced engagement of the two tapered surfaces 38, 40. Also, a notch 51 may be provided in the first seal body 22 to facilitate movement of the collar 33 in a direction toward the inner surface of the hole of the cover 21 in response to slidable engagement between the two tapered surfaces 38, 40.
  • a power generating module 100 that includes an inner shell 101 which contains a stack 105 of electrochemical cells 80 and various electronic boards.
  • An inner shell cover 108 incorporates a hermetic seal 115, such as that described previously with respect to Figs. 1-3, that seals various feed-throughs provided in the inner shell cover 108.
  • the module includes an inner shell 101 which contains a stack 105 of electrochemical cells 80 and various electronic boards.
  • An inner shell cover 108 incorporates a hermetic seal 115, such as that described previously with respect to Figs. 1-3, that seals various feed-throughs provided in the inner shell cover 108.
  • the 100 includes a stack 105 of electrochemical cells 80 which are interconnected through use of a power board 104.
  • the stack 105 of electrochemical cells 80 are segregated into six cell packs 82, all of which are banded together by use of two bands 92 and two opposing end plates 90.
  • the 48 electrochemical cells 80 are subjected to a continuous compressive force generated by use of the bands 92 and a foam or spring-type element disposed within or adjacent each of the cells 80. It is noted that the foam or spring-type element serves to distribute pressure evenly between the cells 80, which is of particular importance during cell discharge.
  • the volume of one embodiment of an electrochemical cell 80 varies during charge and discharge cycling due to the migration of lithium ions into or out of the cathode material. This creates a corresponding increase or decrease in cell volume on the order of approximately 5 percent during charging and discharging, respectively.
  • a foam or spring-type element incorporated within each cell 80 is maintained at approximately 10 to 40 percent compression with respect to its original thickness, which produces pressure variations ranging between approximately 10 and 35 psi during charge/discharge cycling.
  • a pressure management apparatus such as a stack banding apparatus, in combination with foam or spring-type elements 22, provides for constant pressures ranging between approximately 15 and 100 psi during operation to accommodate changes in cell volume which generally improves cell cycleability and heat transfer characteristics .
  • Each electrochemical cell 80 includes a bus bar which is spot welded or otherwise attached respectively to one or both of the positive and negative sprayed-on metal contacts.
  • the positive and negative contacts of the bus bars 81 carry current from the cells 80 to the power board 104.
  • the bus bars 81 also conduct heat from the cells to a metallic inner shell 101 which serves as a heat sink.
  • the bus bars 81 include a spring portion which deforms when the cell 80 is inserted into the inner shell 101, accommodating tolerances in cell length and changes in separation distances between the cells 80 and the inner shell 101.
  • the inner shell 101 has a thickness of approximately 1 mm and is fabricated from deep drawn aluminum.
  • the interior sides of the inner aluminum shell 101 include an anodized coating having a thickness of approximately 0.64 mm.
  • the anodized surface of the inner shell 101 provides electrical insulation between adjacent cells 80., yet provides for the efficient transfer of heat generated from the cells 80 through contact with the bus bars 81.
  • the power board 104 is situated above the cell stack 105 and includes control circuitry for each of the respective six cell packs 82 constituting the cell stack 105.
  • Each cell pack control unit 113 includes a short circuit protection device (SCPD) 107, a by-pass device 109, and an equalizer circuit 111 which cooperate to control the operation of the cell pack 82 while charging and discharging. Accordingly, each of the cell packs 82 is monitored and controlled by a respective cell pack control unit 113.
  • a control board 106 situated above the power board 104, includes a processor that monitors and controls each of the six cell pack control units
  • control board 106 provides for cell pack and module level monitoring and control during charging and discharging operations.
  • a pair of quick connectors 115 pass through corresponding holes provided in an inner shell cover 108 and serve as the main power terminals.
  • the quick connectors 115 are hermetically sealed to the inner shell cover 108 using a sealing apparatus in accordance with the principles of the present invention.
  • the quick connectors 115 are received into mating sockets 117 provided on the power board 104.
  • Communication connectors 119 which pass through the inner shell cover 108 and are similarly hermetically sealed thereto, provide external access to the control board 106 and other electronic boards of the module 100.
  • a hermetic seal is provided between the inner shell 101 and inner shell cover 108 by welding the inner shell cover 108 to the top of the inner shell 101.
  • the sealed inner shell 101 is then inserted into an outer shell 102.
  • the outer shell 102 is fabricated from glass filled polypropylene through use of an injection molding process, and has a thickness of approximately 2 mm.
  • the outer shell 102 includes ribs on three sides of the inner surface which form flow channels when the inner shell 101 is installed in the outer shell 102 for the purpose of transporting a heat transfer fluid between the inner and outer shells 101, 102.
  • the outer shell cover 110 is vibration welded to the top of the outer shell 102.
  • Fluid connectors 112 are provided on the outer shell cover 110 and provide for the flow of heat transfer fluid into and out of the module 100.
  • the power sources shown in Fig. 4 may constitute solid-state, thin-film cells of the type shown in Figs. 5-6.
  • Such thin-film electrochemical cells are particularly well-suited for use in the construction of high-current, high-voltage power generating modules and batteries, such as those used to power electric vehicles for example.
  • Fig. 5 there is shown an embodiment of a prismatic electrochemical cell 200 which includes an anode contact 201 and a cathode contact 203 formed respectively along opposing edges of the electrochemical cell 200.
  • a bus bar 202 is spot welded or otherwise attached to each of the anode and cathode contacts 201, 203, respectively.
  • a bus bar 202 is typically disposed along the length of the anode contact 201 and the cathode contact 203, and typically includes an electrical connection lead 204 for conducting current into and out of the electrochemical cell 200.
  • the bus bar 202 may be fashioned from copper and have a substantially C-shaped, double C-shaped, Z- shaped, V-shaped, or 0-shaped cross-section.
  • the electrochemical cell 200 is fabricated to have a length L of approximately 135 mm, a height- H of approximately 149 mm, and a width W ec of approximately 5.4 mm or approximately 5.86 mm when including a foam core element .
  • the width W c of the cathode contact 203 and the anode contact 201 is approximately 3.9 mm, respectively.
  • Such a cell 200 typically exhibits a nominal energy rating of approximately 36.5 Wh, a peak power rating of 87.0 W at 80 percent depth of discharge (DOD) , and a cell capacity of 14.4 Ah at full charge.
  • Each of the electrochemical cells 200 has a nominal operating voltage ranging between approximately 2.0 V and 3.1 V.
  • the electrochemical cell shown in Fig. 5 may have a construction similar to that illustrated in Fig. 6.
  • an electrochemical cell 180 is shown as having a flat wound prismatic configuration which incorporates a solid polymer electrolyte 186 constituting an ion transporting membrane, a lithium metal anode 184, a vanadium oxide cathode 188, and a central current collector 190.
  • These film elements are fabricated to form a thin-film laminated prismatic structure, which may also include an insulation film, such as polypropylene film.
  • a known sputtering metallization process is employed to form current collecting contacts along the edges 185, 183 of the anode and cathode current collector films 184, 190, respectively.
  • the metal-sprayed contacts provide for superior current collection along the length of the anode and cathode film edges 185, 183, and demonstrate good electrical contact and heat transfer characteristics.
  • a spring-like thermal conductor or bus bar such as the bus bar 202 shown in Fig. 5, is then spot-welded or otherwise attached to the metal-sprayed contact.
  • the electrochemical cells illustrated in Figs. 4-6 may be fabricated in accordance with the methodologies disclosed in U.S. Patent Nos. 5,423,110, 5,415,954, and 4,897,917.
  • the hermetic seal disclosed herein may be employed for sealing passages having varying geometries in surfaces having varying configurations.
  • the components of the seal may be fabricated from suitable materials other than those specifically described above.
  • a hermetic seal constructed in accordance with the principles of the present invention may be incorporated into housing structures that contain power sources of a conventional design, such as wet and dry electrolytic cells, or an advanced design, such as those employing nickel metal hydride (Ni-MH) , lithium-ion, (Li-Ion) , or other high energy battery technologies. Accordingly, the scope of the present invention should not be limited by the particular embodiments discussed above, but should be defined only by the claims set forth below and equivalents thereof .

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

Dispositif et procédé servant à sceller un périmètre d'un orifice défini dans une surface plane. Un joint hermétique servant à sceller un orifice situé dans le couvercle d'un boîtier comporte un premier corps de joint en contact avec une première surface du couvercle et présente un passage central. Ce premier corps de joint comprend un collier s'étendant à travers l'orifice du couvercle et possède une surface extérieure s'appuyant contre une surface intérieure de l'orifice. Ce collier possède une surface intérieure qui s'éloigne en se rétrécissant depuis le passage central. Un deuxième corps de joint du joint hermétique se trouve en contact avec la deuxième surface du couvercle et possède un passage central. Ce deuxième corps de joint comporte une rainure dont la surface intérieure s'étend en direction du passage central en se rétrécissant. Lorsqu'on accouple le premier et le deuxième corps de joint, une partie du collier vient loger dans la rainure, de sorte que le rétrécissement de la surface du collier s'appuie contre le rétrécissement de la surface de la rainure. Un conduit traverse les passages centraux respectifs du premier et du deuxième corps de joint et présente une première extrémité, une deuxième extrémité opposée à la deuxième extrémité et une bride s'étendant vers l'extérieur depuis la première extrémité et venant en contact avec le premier corps de joint. Un élément de serrage est accouplé à la deuxième extrémité du conduit et exerce une force de compression sur le premier et le deuxième corps de joint suffisante pour provoquer la déformation lente d'une partie de la surface extérieure du collier contre la surface intérieure de l'orifice, ce qui permet de sceller le périmètre de l'orifice dans le couvercle.
PCT/US1998/015277 1997-07-25 1998-07-23 Joint hermetique pour source de courant situee dans un boitier WO1999005896A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU85098/98A AU8509898A (en) 1997-07-25 1998-07-23 Hermetic seal for an encased power source

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90031897A 1997-07-25 1997-07-25
US08/900,318 1997-07-25

Publications (2)

Publication Number Publication Date
WO1999005896A1 true WO1999005896A1 (fr) 1999-02-04
WO1999005896A9 WO1999005896A9 (fr) 1999-04-22

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WO (1) WO1999005896A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1300893A2 (fr) * 2001-10-02 2003-04-09 NEC TOKIN Tochigi, Ltd. Batterie fermée
US20110287310A1 (en) * 2010-05-19 2011-11-24 Sang-Won Byun Rechargeable battery
US20130004832A1 (en) * 2011-06-30 2013-01-03 Yong-Sam Kim Rechargeable battery

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578506A (en) * 1968-02-29 1971-05-11 Accumulateurs Fixes Sealing arrangement for terminals of electrochemical generators
US4241152A (en) * 1978-11-14 1980-12-23 Deutsch Automobilgesellschaft Mbh Disconnectable gas-tight and pressure-resistant electrical lead-out
EP0244683A1 (fr) * 1986-05-08 1987-11-11 Globe-Union Inc. Appareil pour rendre étanche une borne terminale d'une batterie
US5199239A (en) * 1991-09-30 1993-04-06 Honeywell Inc. Housing seal interface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578506A (en) * 1968-02-29 1971-05-11 Accumulateurs Fixes Sealing arrangement for terminals of electrochemical generators
US4241152A (en) * 1978-11-14 1980-12-23 Deutsch Automobilgesellschaft Mbh Disconnectable gas-tight and pressure-resistant electrical lead-out
EP0244683A1 (fr) * 1986-05-08 1987-11-11 Globe-Union Inc. Appareil pour rendre étanche une borne terminale d'une batterie
US5199239A (en) * 1991-09-30 1993-04-06 Honeywell Inc. Housing seal interface

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1300893A2 (fr) * 2001-10-02 2003-04-09 NEC TOKIN Tochigi, Ltd. Batterie fermée
EP1300893A3 (fr) * 2001-10-02 2006-05-10 NEC TOKIN Tochigi, Ltd. Batterie fermée
US20110287310A1 (en) * 2010-05-19 2011-11-24 Sang-Won Byun Rechargeable battery
US8962180B2 (en) * 2010-05-19 2015-02-24 Samsung Sdi Co., Ltd. Rechargeable battery including overlapping first and second gaskets between terminal and cap plate
US20130004832A1 (en) * 2011-06-30 2013-01-03 Yong-Sam Kim Rechargeable battery
US8865344B2 (en) * 2011-06-30 2014-10-21 Samsung Sdi Co., Ltd. Rechargeable battery

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AU8509898A (en) 1999-02-16
WO1999005896A9 (fr) 1999-04-22

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